1123025200 has 90 divisors (see below), whose sum is σ = 2965772852. Its totient is φ = 408355200.

The previous prime is 1123025173. The next prime is 1123025201. The reversal of 1123025200 is 25203211.

It is a super-2 number, since 2×1123025200² = 2522371199670080000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1123025201) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 36799 + ... + 60001.

Almost surely, 2^1123025200 is an apocalyptic number.

1123025200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123025200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1482886426).

1123025200 is an abundant number, since it is smaller than the sum of its proper divisors (1842747652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123025200 is a wasteful number, since it uses less digits than its factorization.

1123025200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23243 (or 23221 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1123025200 is about 33511.5681519084. The cubic root of 1123025200 is about 1039.4329996102.

Adding to 1123025200 its reverse (25203211), we get a palindrome (1148228411).

The spelling of 1123025200 in words is "one billion, one hundred twenty-three million, twenty-five thousand, two hundred".